One idea could be to have heroes from different universes team up to fight a common, powerful enemy. For example, Superman from DC and Thor from Marvel joining forces.
First, decide which heroes you want to cross over. It could be your favorite heroes from different shows or comics. Then, think about the setting. Is it in a shared universe, or are they brought together by some strange event?
A possible idea for a Fire Emblem Heroes crossover fanfic is to cross it with the Final Fantasy series. The characters from Fire Emblem Heroes could enter the world of Final Fantasy and encounter iconic summons like Ifrit or Shiva. They could also participate in battles against the likes of Sephiroth. Another option is a crossover with the Pokémon world. The Fire Emblem Heroes might befriend Pokémon and use them in battles, or they could be on a quest to stop an evil organization that's misusing Pokémon power.
First, decide which other universe or franchise you want to cross Fire Emblem Heroes with. Then, research about the lore, characters, and settings of both. After that, come up with a basic plot. For example, if you're crossing with Naruto, you could start with a portal opening between the two worlds and Fire Emblem Heroes being drawn into the ninja world. Next, introduce your main characters from Fire Emblem Heroes and show their reactions to the new world.
Solid Snake from the Metal Gear series would be a great choice. His stealth skills and military expertise would contrast with Travis Touchdown's more brash and direct fighting style. They could be forced to work together on a mission, and learn from each other's ways of combat.
There are many 'heroes crossover fanfiction' that involve characters from different comic book publishers. For example, a story that crosses over Hellboy with the Justice League. Hellboy's demonic nature and his unique weaponry would add a new dimension to the Justice League's adventures. And then there's the idea of a crossover between the Teenage Mutant Ninja Turtles and the Power Rangers. The turtles' ninja skills and the Rangers' morphing powers could create a really fun and action - filled fanfiction.
To write a great 'heroes crossover fanfiction', start with a strong concept. Decide which heroes are going to cross paths and why. Let's say you want to cross over Flash and Quicksilver. You could start with a race between them that leads to something bigger, like a time - rift they need to fix together. Next, build the world where they meet. Is it in Flash's Central City or Quicksilver's mutant - filled world? Develop the relationships between the characters. They might start as rivals but end up as friends. And don't forget to add some humor or emotional depth to make the story more engaging.
A crossover with a superhero universe, say the Marvel Universe. Travis Touchdown from No More Heroes could find himself in New York City and get involved with the Avengers. Maybe he initially misunderstands their motives and gets into a fight with them, but then realizes they're on the same side against a greater threat.
When writing a Fire Emblem Heroes crossover fanfiction, it's crucial to do your research on the source material. Dive deep into the lore of each character you plan to include. This will give your story depth and authenticity. You should also focus on creating a unique and captivating story arc. Maybe there's a prophecy that only the combined powers of different Fire Emblem heroes can fulfill. In terms of writing style, use descriptive language to bring the battles and the characters' emotions to life. For instance, when describing a fight, don't just say they fought, but describe the clang of their weapons, the sweat on their brows, and the determination in their eyes. Also, make sure to give each character a distinct role in the story, so that no one feels like a mere sidekick.
One interesting concept could be Naruto characters teaming up with heroes from other universes. For example, Naruto and Spider - Man could combine their skills. Naruto's shadow clones could be used for distraction while Spider - Man uses his webs to capture enemies. Another concept might be the sharing of power - ups. If Naruto meets a hero with super strength, he could learn new ways to enhance his own physical attacks.